The Frontenac Arch is hiding something nobody talks about. Beneath this ancient rock formation spanning Ontario, the rugged landscape holds secrets most locals walk past daily.
The Thousand Islands region of the St. Lawrence River is known for its scenery, cottage country, and summer boat tours. Less well known is the geology beneath the water. The islands are actually the exposed tops of an ancient mountain range, part of a ridge of billion-year-old rock known as the Frontenac Arch. This ridge connects the Canadian Shield to the Adirondack Mountains, forming a natural c…